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Coagulations
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|ruleinteger    = 252296
|ruleinteger    = 252296
}}
}}
'''Coagulations''' is a [[Life-like cellular automaton]]. Its rulestring is B378/S235678, which means that a cell is born when it has 3, 7 or 8 alive neighbours, and an alive cell survives when it has 2, 3, 5, 6, 7 or 8 alive neighbours.


Randomly generated patterns as small as the [[R-pentomino]] evolve into infinitely expanding chaos, which slowly settles down in its central part, resembling the process of [https://en.wikipedia.org/wiki/Coagulation blood coagulation].


==Still lives==
{{EmbedViewer
|rle = x = 3, y = 3, rule = B378/S235678
b2o$2o$bo!
|position = center}}


==Notable patterns==
===Still lives===


==Oscillators==
All patterns that are stable in [[Life]] are also stable in Coagulations, because no still life from B3/S23 can trigger the B7 or B8 birth condition. Additionally, due to more survival conditions, many patterns unstable in Life also are still lives in Coagulations:


{{EmbedViewer
|rle = x = 48, y = 16, rule = B378/S235678
39b2o$39b2o$20bo2bo13bob2obo$18b8o10bob4obo$18b8o9bob6obo$2bo6bobo5b
10o7bob8obo$5o2b7o4b8o9b10o$5o2b7o3b10o5b16o$2bo6bobo6b8o6b16o$17b10o
8b10o$18b8o8bob8obo$18b8o9bob6obo$20bo2bo12bob4obo$37bob2obo$39b2o$39b
2o!
|position = center}}


==Spaceships==
===Oscillators===
Many oscillators from Life also work in Coagulations.
{{EmbedViewer
|rle = x = 32, y = 5, rule = B378/S235678
o6bo5b2o7bo7b2o$o4bo2bo4bo6b2o9bo$o4bo2bo7bo5b2o4bobo$6bo8b2o4bo5bo$
27b2o!
|position = center}}


Out of the [[List of common oscillators|most common Life oscillators]], [[pulsar]] and [[pentadecathlon]] don't work, as pulsar triggers the S5 condition in one of its phases, and pentadecathlon triggers multiple conditions at once. Pulsar disappears entirely, while pentadecathlon evolves into a larger p5 oscillator.
{{EmbedViewer
|rle = x = 37, y = 13, rule = B378/S235678
2b3o3b3o2$o4bobo4bo$o4bobo4bo$o4bobo4bo$2b3o3b3o18bo4bo$27b2ob4ob2o$2b
3o3b3o18bo4bo$o4bobo4bo$o4bobo4bo$o4bobo4bo2$2b3o3b3o!
|position = center}}
===Spaceships===
==Reversal rule==
===Still lives===
===Oscillators===
===Spaceships===


==See also==
==See also==
Line 24: Line 65:
==External links==
==External links==
* {{LinkForumThread|format=ref|p=43359|title=Coagulations (B378/S235678)}}
* {{LinkForumThread|format=ref|p=43359|title=Coagulations (B378/S235678)}}
* {{LinkForumThread|format=ref|p=2706|title=Inverse of "Coagulations" rule (B478/S234678)}}
* [https://english.rejbrand.se/rejbrand/article.asp?ItemIndex=414 Coagulations on Andreas Rejbrand’s Website]


[[Category:Life-like cellular automata]]
[[Category:Life-like cellular automata]]

Revision as of 17:18, 8 July 2026

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Coagulations
x=64, y = 64, rule = B378/S235678 ! #C [[ THEME Inverse ]] #C [[ RANDOMIZE2 THUMBLAUNCH THUMBNAIL THUMBSIZE 2 GRID ZOOM 6 WIDTH 600 HEIGHT 600 LABEL 90 -20 2 "#G" AUTOSTART PAUSE 2 GPS 8 LOOP 256 ]]
LifeViewer-generated pseudorandom soup
Rulestring 235678/378
B378/S235678
Rule integer 252296
Character Explosive
Black/white reversal B478/S234678

Coagulations is a Life-like cellular automaton. Its rulestring is B378/S235678, which means that a cell is born when it has 3, 7 or 8 alive neighbours, and an alive cell survives when it has 2, 3, 5, 6, 7 or 8 alive neighbours.

Randomly generated patterns as small as the R-pentomino evolve into infinitely expanding chaos, which slowly settles down in its central part, resembling the process of blood coagulation.

x = 3, y = 3, rule = B378/S235678 b2o$2o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
(click above to open LifeViewer)

Notable patterns

Still lives

All patterns that are stable in Life are also stable in Coagulations, because no still life from B3/S23 can trigger the B7 or B8 birth condition. Additionally, due to more survival conditions, many patterns unstable in Life also are still lives in Coagulations:

x = 48, y = 16, rule = B378/S235678 39b2o$39b2o$20bo2bo13bob2obo$18b8o10bob4obo$18b8o9bob6obo$2bo6bobo5b 10o7bob8obo$5o2b7o4b8o9b10o$5o2b7o3b10o5b16o$2bo6bobo6b8o6b16o$17b10o 8b10o$18b8o8bob8obo$18b8o9bob6obo$20bo2bo12bob4obo$37bob2obo$39b2o$39b 2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
(click above to open LifeViewer)

Oscillators

Many oscillators from Life also work in Coagulations.

x = 32, y = 5, rule = B378/S235678 o6bo5b2o7bo7b2o$o4bo2bo4bo6b2o9bo$o4bo2bo7bo5b2o4bobo$6bo8b2o4bo5bo$ 27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
(click above to open LifeViewer)

Out of the most common Life oscillators, pulsar and pentadecathlon don't work, as pulsar triggers the S5 condition in one of its phases, and pentadecathlon triggers multiple conditions at once. Pulsar disappears entirely, while pentadecathlon evolves into a larger p5 oscillator.

x = 37, y = 13, rule = B378/S235678 2b3o3b3o2$o4bobo4bo$o4bobo4bo$o4bobo4bo$2b3o3b3o18bo4bo$27b2ob4ob2o$2b 3o3b3o18bo4bo$o4bobo4bo$o4bobo4bo$o4bobo4bo2$2b3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
(click above to open LifeViewer)


Spaceships

Reversal rule

Still lives

Oscillators

Spaceships

See also